Device for operating the dogs of hoisting-engines.



No. 7|3.,487. Patented Nov. Il, |902.

' P. ULSEN.

ADEVIGE FOR OPERATING THE BUGS 0F HDISVTING ENGINES.

(Application filed Oct. 16, 1900.)

(No Model.)

Witnesses UNTTED STATES PATENT OFFICE.

PETER OLSEN, OF NEW YORK, N. Y., ASSIGNOR TO THE LIDGERWOODMANUFACTURING COMPANY, OF NEW' YORK, N. Y., A CORPORA- TION.

DEVICE FOR OPERATING THE DOGS OF HOISTING-ENGINES.

SPECIFICATION forming part of Letters Patent No. 713,487, dated November11, 1902.

Application filed October 16, 1900. Serial No. 33,188- .Nn mariah? lIlo@ZZ whom, 77mg/ concern:

Beit known that I, PETER OLSEN, a citizen of the United States, and aresident of New York city, borough of Manhattan, in the county of NewYork and State of New York, have invented a new and Improved Device forOperating the Dogs of Hoisting-Engines, of which the following is afull, clear, and exact description.

My invention relates to an improvement in devices for operating the dogof a hoistingengine,and comprises certain novel features, which will behereinafter described, and particularly pointed out in the claims.

The drawings accompanyingherewith show a preferred form of construction,the same being in the form of an attachment which may be secured to anengine already in use, although itis evident that when the engine isbeing built provision may be made for a bearing for the shaft of mydevice in the frame of the engine.

Figure l of the drawings shows a portion of the hoisting-engine in planwith my device attached thereto, and Fig. 2 is a side elevation of thesame.

In a great many if not a majority of the hoisting-engines builtcontainingarope-drum A, loose on a shaft I and driven by a frictionconeJ, fixed to the shaft, provision is made for locking the hoisting-drumagainst its running backward or in the direction which will permit thecable wound thereon to be run ou t. This is usually accomplished bymeans of a toothed or ratchet Wheel, as B, fast to the drum, and a dogor pawl, as P, adapted to engage therewith and hold the drum fromturning backward, both the ratchet and dog being generally locatedinside the end frame H, which carries one bearing of the drum-shaft I.

I combine with the parts of an engine of the class referred to mechanismfor operating the dog extending from the same to a point nearer theposition outside the end frame H of the man operating thefriction-lever, and in its preferred form this point isin such positionthat the dog may be operated by the same hand used for operating thefriction.

In the construction of the device, as herein shown, a slide E is mountedupon the frictioncontrolling lever D, and two guide-rollers d are placeduponthis lever, so as to be upon oppositesides ofitspivotalcenter.Theguiderollers d may be supported independent of the lever, if desired,but should be located at each side of the axis of the lever. The lever Dis preferably outside the end frame H and controls a friction device bywhich the drum is driven and which may be of any preferred form. As theparticular construction of the friction device is im material to myinvention, I have not illustrated it in detail.

In the construction herein shown, in which the device is designed forattachment to an engine already built, a frame F is provided having twoarms and adapted to be secured to the two bolts f, which are usuallyprovided in connection with an engine of this sort to take the thrust ofthe friction device. The ends of these arms are provided with holesadapted to pass over the bolts f, and said arms are adapted to besecured in place by the nuts which screw upon said bolts. This framecarries a sleeve F', adapted to form a bearing for a rock-shaft G, whichis provided at its ends with arms g and g, one of which, the arm g, isconnected by a linkp with the dog or pawl P. The other arm g, which isat the opposite end of the rock-shaft, is connected, by means of a chaine or other equivalent iiexible member, with the slide E, which iscarried by the friction-controlling lever D. This chain passes betweenthe two guiderollers d, so that the distance from any point upon thefriction-controlling lever D to the end of the arm g shall be constantat any and all positions of the lever D.

At P the pawl or dog P is counterweighted, so as to normally be held outof engagement with the toothed wheel O. When it is desired to throw thepawl into engagement, and thus to lock the drum, the upper end of theslide E, which is bent to one side for that purpose, may be engaged by afinger of the hand by which the lever D is operated to pull the slideup, and thus to throw the doginto engagement.

While I have herein shown but one form of device for carrying out myinvention, I am aware that the same may be embodied in IOO other quitedifferent forms and do not, therefore, wish to be understood asconfining myself to the particular construction shown and described, butclaim my invention in any form in which it may be embodied.

Having thus fully described my invention, I claim as new and desire tosecu re by Letters Patentl. In a hoisting-engine, the combination with adrum, a friction driving means for said drum, and a friction-controllingmember, of a drum locking or holding mechanism, and an operating membertherefor mounted upon the friction-controlling member.

2. In a hoisting-engine, the combination with a drum, and locking meanstherefor, of a friction driving mechanism for said drum, a lever forcontrolling said friction mechanism, a lock-controlling member carriedby said lever, guides coinciding with the pivot of said lever, andconnections from said lockcontrolling member to the lock and passingthrough said guides.

3. In a hoistingengine the combination with a drum, and a locking meanstherefor normally out of action, of a friction driving mechanism forsaid drum, a lever for controlling said friction mechanism, alockapplying membel` carried by said lever, guides coinciding with thepivot of said lever, and a flexible connector extending from the saidlock-controlling member to the lock and passing through said guides.

4. In a hoisting-engine the combination with a drum, an adjustablefriction driving means for said drum, and a lever controlling the saidfriction, of a ratchet and pawl adapted to hold the drum againstrotation, a slide mounted upon the friction driving-lever and adapted tobe engaged by the hand operating said lever, and connections from saidslide to the pawl comprising a guide coinciding with the pivot of saidlever.

5. In a hoisting-engine, the combination with a drum, a frictionoperating means for said drum, a lever for controlling said friction,and a ratchet and pawl adapted to hold the drum against turning, of amovable paWlcontrolling member carried by said lever, connectionsbetween said paWl-controlling member and pawl comprising a iiexiblemember, and guides for said iexible member placed at the axis of thelever by which the friction is controlled.

.6. In a hoisting-engine, the combination with a drum, a frictiondriving means for said drum,a lever for controlling said friction and apawl and ratchet for holding the drum against rotation,of a slidemounted on said lever, rollers journaled on the lever at each side ofits pivot-point, and connections from said slide to the pawl comprisinga fieXible member passing between said rollers.

7. In a hoisting-engine, the combination with a drum, and frictiondriving means for said drum, a lever for controlling said friction and apawl and ratchet for holding the drum against rotation, of a slidemounted on said lever, rollers journaled on the lever at each side ofits pivot-point, a rock-shaft having arms thereon, a connection from oneof said arms to the pawl, anda flexible connection between the other armand the slide and guided between said rollers.

8. In a hoisting-engine the combination with a drum, a friction drivingmeans for Said drum, a lever for controlling said friction, and a pawland ratchet for holding the drum against rotation, of a slide mounted onsaid lever, rollers journaled on the lever at each side of itspivot-point, a frame adapted to be secured to the engine-frame, arock-shaft journaled in said frame and provided with two arms, aconnection from one of said arms to the pawl, and a iiexible connectionbetween the other arm and the slide and guided between said rollers.

9. In a hoisting-engine in combination a driven shaft, a rope-drum looseou the shaft, a friction-clutch fixed to the shaft, a frame containingone bearing of said shaft, a friction-clutch-controlling lever outsideof said frame, a drum-locking device inside said frame, and mechanismfor operating said drum-locking device mounted upon but unaected by themovements of the clutch-operating lever.

10.' In a hoisting device, the combination with a drum, a clutch-drivingmechanism therefor and a lever for controlling the clutch, of a lock forthe drum, and a lock-controlling lever moving in unison with butunaected by the movements of the clutch-controlling lever and operativeindependently thereof.

In testimony whereof I have signed my name to this specification, in thepresence of the two subscribing witnesses, at New York,

October 15, 1900.

PETER OLSEN. Witnesses: A

H. L. REYNOLDS, CHARLES J. RATHIEN.

IOO

